OOPS, someone made a mistake
I say any Mopar 8 3/4 housing and carrier be it 741,742, 488, 489
( 488 is a brief precursor to 489),
1957-74 has the same mounting pattern , this gasket is correct for those applications
Could it be said "any 8 3/4 Mopar axle housing from 1957-74" ???
Definitely NOT. 7 1/4